#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "demo_dict_2.h"

const uint8_t vectors_sip64[64][8] = {
    { 0x31, 0x0e, 0x0e, 0xdd, 0x47, 0xdb, 0x6f, 0x72, },
    { 0xfd, 0x67, 0xdc, 0x93, 0xc5, 0x39, 0xf8, 0x74, },
    { 0x5a, 0x4f, 0xa9, 0xd9, 0x09, 0x80, 0x6c, 0x0d, },
    { 0x2d, 0x7e, 0xfb, 0xd7, 0x96, 0x66, 0x67, 0x85, },
    { 0xb7, 0x87, 0x71, 0x27, 0xe0, 0x94, 0x27, 0xcf, },
    { 0x8d, 0xa6, 0x99, 0xcd, 0x64, 0x55, 0x76, 0x18, },
    { 0xce, 0xe3, 0xfe, 0x58, 0x6e, 0x46, 0xc9, 0xcb, },
    { 0x37, 0xd1, 0x01, 0x8b, 0xf5, 0x00, 0x02, 0xab, },
    { 0x62, 0x24, 0x93, 0x9a, 0x79, 0xf5, 0xf5, 0x93, },
    { 0xb0, 0xe4, 0xa9, 0x0b, 0xdf, 0x82, 0x00, 0x9e, },
    { 0xf3, 0xb9, 0xdd, 0x94, 0xc5, 0xbb, 0x5d, 0x7a, },
    { 0xa7, 0xad, 0x6b, 0x22, 0x46, 0x2f, 0xb3, 0xf4, },
    { 0xfb, 0xe5, 0x0e, 0x86, 0xbc, 0x8f, 0x1e, 0x75, },
    { 0x90, 0x3d, 0x84, 0xc0, 0x27, 0x56, 0xea, 0x14, },
    { 0xee, 0xf2, 0x7a, 0x8e, 0x90, 0xca, 0x23, 0xf7, },
    { 0xe5, 0x45, 0xbe, 0x49, 0x61, 0xca, 0x29, 0xa1, },
    { 0xdb, 0x9b, 0xc2, 0x57, 0x7f, 0xcc, 0x2a, 0x3f, },
    { 0x94, 0x47, 0xbe, 0x2c, 0xf5, 0xe9, 0x9a, 0x69, },
    { 0x9c, 0xd3, 0x8d, 0x96, 0xf0, 0xb3, 0xc1, 0x4b, },
    { 0xbd, 0x61, 0x79, 0xa7, 0x1d, 0xc9, 0x6d, 0xbb, },
    { 0x98, 0xee, 0xa2, 0x1a, 0xf2, 0x5c, 0xd6, 0xbe, },
    { 0xc7, 0x67, 0x3b, 0x2e, 0xb0, 0xcb, 0xf2, 0xd0, },
    { 0x88, 0x3e, 0xa3, 0xe3, 0x95, 0x67, 0x53, 0x93, },
    { 0xc8, 0xce, 0x5c, 0xcd, 0x8c, 0x03, 0x0c, 0xa8, },
    { 0x94, 0xaf, 0x49, 0xf6, 0xc6, 0x50, 0xad, 0xb8, },
    { 0xea, 0xb8, 0x85, 0x8a, 0xde, 0x92, 0xe1, 0xbc, },
    { 0xf3, 0x15, 0xbb, 0x5b, 0xb8, 0x35, 0xd8, 0x17, },
    { 0xad, 0xcf, 0x6b, 0x07, 0x63, 0x61, 0x2e, 0x2f, },
    { 0xa5, 0xc9, 0x1d, 0xa7, 0xac, 0xaa, 0x4d, 0xde, },
    { 0x71, 0x65, 0x95, 0x87, 0x66, 0x50, 0xa2, 0xa6, },
    { 0x28, 0xef, 0x49, 0x5c, 0x53, 0xa3, 0x87, 0xad, },
    { 0x42, 0xc3, 0x41, 0xd8, 0xfa, 0x92, 0xd8, 0x32, },
    { 0xce, 0x7c, 0xf2, 0x72, 0x2f, 0x51, 0x27, 0x71, },
    { 0xe3, 0x78, 0x59, 0xf9, 0x46, 0x23, 0xf3, 0xa7, },
    { 0x38, 0x12, 0x05, 0xbb, 0x1a, 0xb0, 0xe0, 0x12, },
    { 0xae, 0x97, 0xa1, 0x0f, 0xd4, 0x34, 0xe0, 0x15, },
    { 0xb4, 0xa3, 0x15, 0x08, 0xbe, 0xff, 0x4d, 0x31, },
    { 0x81, 0x39, 0x62, 0x29, 0xf0, 0x90, 0x79, 0x02, },
    { 0x4d, 0x0c, 0xf4, 0x9e, 0xe5, 0xd4, 0xdc, 0xca, },
    { 0x5c, 0x73, 0x33, 0x6a, 0x76, 0xd8, 0xbf, 0x9a, },
    { 0xd0, 0xa7, 0x04, 0x53, 0x6b, 0xa9, 0x3e, 0x0e, },
    { 0x92, 0x59, 0x58, 0xfc, 0xd6, 0x42, 0x0c, 0xad, },
    { 0xa9, 0x15, 0xc2, 0x9b, 0xc8, 0x06, 0x73, 0x18, },
    { 0x95, 0x2b, 0x79, 0xf3, 0xbc, 0x0a, 0xa6, 0xd4, },
    { 0xf2, 0x1d, 0xf2, 0xe4, 0x1d, 0x45, 0x35, 0xf9, },
    { 0x87, 0x57, 0x75, 0x19, 0x04, 0x8f, 0x53, 0xa9, },
    { 0x10, 0xa5, 0x6c, 0xf5, 0xdf, 0xcd, 0x9a, 0xdb, },
    { 0xeb, 0x75, 0x09, 0x5c, 0xcd, 0x98, 0x6c, 0xd0, },
    { 0x51, 0xa9, 0xcb, 0x9e, 0xcb, 0xa3, 0x12, 0xe6, },
    { 0x96, 0xaf, 0xad, 0xfc, 0x2c, 0xe6, 0x66, 0xc7, },
    { 0x72, 0xfe, 0x52, 0x97, 0x5a, 0x43, 0x64, 0xee, },
    { 0x5a, 0x16, 0x45, 0xb2, 0x76, 0xd5, 0x92, 0xa1, },
    { 0xb2, 0x74, 0xcb, 0x8e, 0xbf, 0x87, 0x87, 0x0a, },
    { 0x6f, 0x9b, 0xb4, 0x20, 0x3d, 0xe7, 0xb3, 0x81, },
    { 0xea, 0xec, 0xb2, 0xa3, 0x0b, 0x22, 0xa8, 0x7f, },
    { 0x99, 0x24, 0xa4, 0x3c, 0xc1, 0x31, 0x57, 0x24, },
    { 0xbd, 0x83, 0x8d, 0x3a, 0xaf, 0xbf, 0x8d, 0xb7, },
    { 0x0b, 0x1a, 0x2a, 0x32, 0x65, 0xd5, 0x1a, 0xea, },
    { 0x13, 0x50, 0x79, 0xa3, 0x23, 0x1c, 0xe6, 0x60, },
    { 0x93, 0x2b, 0x28, 0x46, 0xe4, 0xd7, 0x06, 0x66, },
    { 0xe1, 0x91, 0x5f, 0x5c, 0xb1, 0xec, 0xa4, 0x6c, },
    { 0xf3, 0x25, 0x96, 0x5c, 0xa1, 0x6d, 0x62, 0x9f, },
    { 0x57, 0x5f, 0xf2, 0x8e, 0x60, 0x38, 0x1b, 0xe5, },
    { 0x72, 0x45, 0x06, 0xeb, 0x4c, 0x32, 0x8a, 0x95, },
};

void siphash_test_case_1() {

    uint8_t in[64], k[16];
    int i;
    int fails = 0;

    for (i = 0; i < 16; ++i) {
        k[i] = 1;
    }

    for (i = 0; i < 64; ++i) {
        in[i] = i;
        uint64_t hash = siphash(in, i, k);
        const uint8_t *v = NULL;
        v = (uint8_t *)vectors_sip64;
        if (memcmp(&hash, v + (i * 8), 8)) {
            printf("fail for %d bytes\n", i);
            fails++;
        }
    }
    
    if (!fails) {
        printf("SipHash test: OK\n");
    } else {
        printf("SipHash test: FAILED\n");
    }
}

void siphash_test_case_2() {

    int fails = 0;

    uint64_t h1, h2;
    h1 = siphash((uint8_t*)"hello world", 11, (uint8_t *)"1234567812345678");
    h2 = siphash_nocase((uint8_t*)"hello world",11,(uint8_t*)"1234567812345678");
    if (h1 != h2) fails++;

    h1 = siphash((uint8_t*)"hello world", 11, "1234567812345678");
    h2 = siphash_nocase((uint8_t*)"HELLO world",11,(uint8_t*)"1234567812345678");
    if (h1 != h2) fails++;

    h1 = siphash((uint8_t*)"HELLO world",11,(uint8_t*)"1234567812345678");
    h2 = siphash_nocase((uint8_t*)"HELLO world",11,(uint8_t*)"1234567812345678");
    if (h1 != h2) fails++;

    if (!fails) {
        printf("SipHash test: OK\n");
    } else {
        printf("SipHash test: FAILED, failed num:%d\n", fails);
    }
}

uint64_t hashCallback(const void *key) {

    return dictGenHashFunction((unsigned char *)key, strlen((char *)key));
}

int compareCallback(void *privdata, const void *key1, const void *key2) {

    int l1, l2;
    DICT_NOTUSED(privdata);

    l1 = strlen((char *)key1);
    l2 = strlen((char *)key2);

    if (l1 != l2) return 0;
    return memcmp(key1, key2, l1) == 0;
}

void freeCallback(void *privdata, void *val) {

    // DICT_NOTUSED(privdata);
    // free(val);
}

dictType BenchmarkDictType = {
    hashCallback,
    NULL,
    NULL,
    compareCallback,
    freeCallback,
    NULL
};

#define start_benchmark() start = timeInMilliseconds()
#define end_benchmark(msg) do { \
    elapsed = timeInMilliseconds() - start; \
    printf(msg ": %ld items in %lld ms\n", count, elapsed); \
} while (0);

void dict_test_case_1() {

    int j;
    long long start, elapsed;
    dict *dict = dictCreate(&BenchmarkDictType, NULL);

    int count = 10;

    start_benchmark();

    char array[10][6] = {"one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"};

    for (j = 0; j < count; j++) {
        int retval = dictAdd(dict, array[j], array[j]);
        assert(retval == DICT_OK);
    }

    // dictIterator *dIter = dictGetIterator(dict);
    // dictEntry *node;
    // while ((node = dictNext(dIter)) != NULL) {
    //     printf("node key:%s, val:%s\n", (char *)node->key, (char *)node->v.val);
    // }

    end_benchmark("Inserting");

    while (dictIsRehashing(dict)) {
        dictRehashMilliseconds(dict, 100);
    }

    start_benchmark();

     for (j = 0; j < count; j++) {
        dictEntry *he = dictFind(dict, array[j]);
        assert(he != NULL);
    }

    end_benchmark("Linear access of existing elements");

    start_benchmark();


    for (j = 0; j < count; j++) {
        int retval = dictDelete(dict, array[j]);
        assert(retval == DICT_OK);

        retval = dictAdd(dict, array[j], array[j]);
        assert(retval == DICT_OK);
    }

    end_benchmark("Removing and adding");
}

void dict_test_case_2() {

    int j;
    long long start, elapsed;
    dict *dict = dictCreate(&BenchmarkDictType, NULL);
    int count = 2000000;

    start_benchmark();

    for (j = 0; j < count; j++) {

        char *buff = (char *)malloc(15);
        snprintf(buff, 15, "key%d", j);
        int retval = dictAdd(dict, buff, buff);
        assert(retval == DICT_OK);

    }

    // dictIterator *dIter = dictGetIterator(dict);
    // dictEntry *node;
    // while ((node = dictNext(dIter)) != NULL) {
    //     printf("node key:%s, val:%s\n", (char *)node->key, (char *)node->v.val);
    // }

    end_benchmark("Inserting");

    // Wait for rehashing
    while (dictIsRehashing(dict)) {
        dictRehashMilliseconds(dict, 100);
    }

    start_benchmark();
    for (j = 0; j < count; j++) {
        char *buff = (char *)malloc(15);
        snprintf(buff, 15, "key%d", j);
        
        dictEntry *de = dictFind(dict, buff);
        assert(de != NULL);
    }
    end_benchmark("Accessing missing");

    start_benchmark();
    for (j = 0; j < count; j++) {
        char *buff = (char *)malloc(15);
        snprintf(buff, 15, "key%d", j);

        int retval = dictDelete(dict, buff);
        assert(retval == DICT_OK);

        retval = dictAdd(dict, buff, buff);
        assert(retval == DICT_OK);
    }
    end_benchmark("Removing and adding");
}

int main() {
    dict_test_case_2();
    return 0;
}